#28316B#28316B

#28316B is a dark, moderate blue. Relative luminance 0.037; OKLCH L 34.0% C 0.101 H 273.2°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#28316B
RGB	rgb(40, 49, 107)
HSL	hsl(232, 46%, 29%)
HSV	hsv(232, 63%, 42%)
CMYK	cmyk(62.6%, 54.2%, 0%, 58%)
CIE-LAB	lab(22.68, 15.82, -35.15)
CIE-LCH	lch(22.68, 38.54, 294.22°)
OKLab	oklab(33.95% 0.0056 -0.1006)
OKLCH	oklch(33.95% 0.101 273.2)
XYZ	xyz(4.6264, 3.7089, 14.3792)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28316B #6B6228

analogous

#28536B #28316B #41286B

triadic

#28316B #6B2831 #316B28

tetradic

#28316B #6B2853 #6B6228 #286B41

square

#28316B #6B2853 #6B6228 #286B41

split-complementary

#28316B #6B4128 #536B28

monochromatic

#080A16 #171D3E #28316B #394598 #505FBE

Accessibility & contrast

On white

12.06

#28316B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#28316B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28316B

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28316B	#FFFFFF	#000000	##FFFFFF
##28316B	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11396D

Deuteranopia (green-blind)

#02336A

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28316b;
/* rgb */ color: rgb(40, 49, 107);
/* oklch */ color: oklch(34.0% 0.101 273.2);

Tailwind

colors: {
  custom: {
    50: '#696896',
    500: '#28316b',
    950: '#000000',
  },
}

SCSS

$custom: #28316b;
$custom-light: #696896;
$custom-dark: #000000;

JSON

{
  "hex": "#28316b",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 107
  },
  "hsl": {
    "h": 231.94,
    "s": 45.578,
    "l": 28.824
  },
  "oklch": {
    "l": 0.33953,
    "c": 0.10078,
    "h": 273.2
  },
  "luminance": 0.03709
}

Semantic roles & 50–950 ramp

primary

#28316B

secondary

#9D9351

accent

#C453D5

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #28316B

Body copy rendered with the generated semantic roles for this colour.

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